Valve



May 30, 1933.4 B. P. HOFFMAN VALVE Filed May 12, 195o 2 sheets-sheet 1 ATTORNEY May 30, 1933. B. P. HOFFMAN 1,911,280

VALVE Filed May l2, 1930 2 Sheets-Sheet -2 ATTORN EY Patented May 39,1933

nirao saai-*Es parv r riesig' BENJAMIN- IIOFFMAN, OF TULSA, OKLAHOMA, ASSIGNOR OF ONE-HALF TKO CHARLES 1 S. JGNES, OF TULSA, OKLAHOMA V y V VALVE Application `filed May V12,

My invention relates to valves and more particularly to heavy duty gate valves of the character employed in controlling flow of large volumes offluidunder high pressures.

to provide a valve that can be easily operated under very high fluid pressures and'that embodies additional sealing insurance to that of valves commonly supplied, for eliminating the loss and hazards incident tolleakage.

A further object of this invention is to provide a valve having its through port on an axial line with the flow channel irrespective of its degree of opening. j

In accomplishing these and other objects of my invention I have provided improved details of structure the preferred form of which is illustrated in the accompanying drawings wherein: Y

Fig. 1 is a detail perspective view of a valve embodying my invention, a portion being broken away to illustrate the valve operating mechanism and an operating lever being shown in disassembled relation with the valve.

Fig. 2 valve on the line 2-2 Fig. 3, showing the valve in closed position. y

Fig. 3 is a central section on the line 3-3 v Fig. 4 also-showing the valve in closed position.

Fig. 4 is an elevational view of the valve with an end-plate removed to disclose the operating gears. A

Referring more in detail to the drawings:

l designates a valve body having a flow channel 2 intersected by a cylindrical chamber 3 and provided at its ends with respective flanges 4 and 5, each having a counter-bored annular recess 6 for seating an annular boss 7 on-a coupling flange 8, duplicate coupling flanges being secured to each end of the valve body by bolts 9 extended through openings' 10 in the coupling flanges and threaded' in A openings l1 in the valve body.

Internally threaded openings 12 in the coupling flanges are provided for receiving the threaded ends 13 of upper and lower 'pipe sections 14 and 15 respectively.

Extended transversely through the valve The principal objects of my invention are is a central transverse section of the 193e. serial No. 451,752.

Vcylindrical chamber is a channel 16 having internally threaded portions 17 forreceiving the threaded ends 18- of ypipe sections 19.

the end flanges are further Vprovided forl strengthening the valve,` andi openings 2l therein may be employed for anchoring the valve where necessary, as for example when used as a control head on well tubing.

VOpposite flanges 22 and 23 are formed integrally with opposite ends of the valve body and in concentric alignment with the cylinder chamber 3 for respectivelyV seatingy end plates 24 and 25 later to bemore fully described. y

Rotatably mounted in the chamber 3 is a cylinder 26 provided with a closed end 27 having an outwardly directed concentric journal 28, terminating in a squared end 29,

to permitapplication of awrench 30 for rotating the cylinder. When mounted in the chamber the journal end of the cylinder'is extended through an opening 31 in the end plate 24 which is secured to the valve housing by bolts 32 extended' through openings 33 in the end plate andthreaded into openings 34 in the valve housing. vA counterbored portion 35 in the opening 31 is adapted to receive packing 36, retained therein by a Webs 2O extending from the valve body to gland 37 to seal the rotary movement of the journal in the bearing opening.`

Annular grooves38 are formed on the VVouter surface ofV the cylinder adjacent its ends, to contain lubricant for effectively sealing the cylinder inthe chamber.

An inner concentric valve 39, rotatably mounted in the cylinder,'is provi'dedrwith a closed end 40, havingan outwardly extending, concentric journal portion 41 terminating in a squared end:42`. r

In order to rotate the inner valve and cylinder simultaneously and in opposite directions to each other, a gear 43 is mounted on an enlarged portion 44 of the journal 41 and is fixed to the inner valve by a screvv'f45 extended through on vopening 46 and threaded into an opening 47 in the inner valve.

A cooperating ring gear 48 is seatedin a r counter-bored recess 49 in the open end of the cylinder, and is secured therein by spaced pins driven into openings 51 in the cylinder. Y

Mounted in the annular space reserved between the gear ring and gear 43 are equally spaced gear pinions 52, having spindle bosses 53 adapted to rotate in sockets 54 in the end plate 25. The spindle on one of the pinions is extended to form a .shaft 55 having a squaredend portion 56, projecting through an opening 57 in the end plate, said opening being counter-bored as at 58 to receive paoliing materia-l 59 compressed therein by a gland 60 attached to the end plate by bolts 61.

The end plate 25 is secured to the valve body by bolts 62 inserted in an annular series of openings 63 in the plate and threaded into registering openings 64 in the valve body, the plate 25'having a concentric bearing opening 65 for receiving the journal 41 of the inner valve 39, anda counter-bored p ortion 66 in said opening for seating packing 67, compressed therein by a gland 68 attached to the end plate by bolts 69.

In order to determine When the valve has been fully opened or closed, a pin 70 is fixed in an opening 71 in the journal 41 to limit rotational movement of the journal in either clockwise or anti-clockwise direction by contacting respectively With stop lugs 72 or73, formed on the outer face of the packing gland 68. p

The VWrench or lever 30 may be provided at one end With a squared socket 7 4 to engage the squared portion of either of the large journals, and With a smaller socket 7 5 on its opposite end for engaging the squared end 56 of the shaft 55. A valve constructed and assembled as described, may be interposed in a flow-line or used as a control head on Well tubing.

The inner valve and cylinder may be rotated by applying the Wrench to either of the journals 28 or 41, or to the shaft 55. It Will be apparent that by rotating the shaft 55, a minimum amount of effort is required for operating the valve, due to the reduction in the gearing, Whereas a maximum amount of power is required for operating the valve Vwhen rotating the journal 28.

Since the inner valve land cylinder are geared to rotate simultaneously through the same number of degrees and in opposite directions to each other the channel through Vthe valve, when the valve is in either partly or fully opened position, will always be on an axial line With the flow line.

What I claim and desire to secure by Letters Patent is:

1. In a valve of the character described, a housing having a flow channel and a transverse cylindrical chamber intersecting the flow channel, a cylinder in the chamber having ports registering With the iioW channel,

a ring gear on the cylinder, an inner valve in said cylinder having a bore registering With the flow channel, a gear on the inner valve, gear pinions meshing with said gear of the get-ar pinions and extending through the housing, and means for rotating the operating shaft to simultaneously rotate said inner valve andy cylinder.

2. In a valve of the character described, a housing having a flow channel and a transverse cylindrical chamber intersecting the flow channel, a cylinder in the chamber hav# ing ports registering With the flow channel and having a closed end, a journal on the closed end o-f-thel cylinder, a plate on the housing. having a bearing opening lfor receiving said journal, a gear ring on the cylinder opposite its closed end, an inner valve in the cylinder having arbore reg istering with `the flow channel, ya journal on the inner valve, a plate on the housing opposite the first-named plate, and having an opening vfor receiving said last-named journal, a gear vcoiicentrically mounted on the inner valve, a gear pinion rotatable in said last-named plate and meshing with the gear and gear ring, and means for operating the gears to simultaneously rotate the inner valve and cylinder in opposite directions.

3. AIn a valve of the character described, a hous'ngl having aflovv channel and a transverse cylindrical chamber intersecting the channel, end plates on the housing for closing said chamber having bearing openings, `a. cylinder in the chamber having ports registering with the flow channel and having a closed end, a journal on said closed end and extended through one of the bearing openings, an inner valve in the cylinder having `a bore registering With the flow channel, a journal on the inner valve and extended through the other bearing opening, gear means operably connecting said cylinder and inner valve, and means for rotating either of said journals to simultaneously rotate the cylinder and inner valve for controlling flow of iuid through said flow channel.

4. In a valve of the character described, a housing having a vertical flow channel and a transverse cylindrical chamber intersecting the channel, a horizontal flovv'channel in said housing in transverse relation to saidy chamber, a cylinder in the chamber having ports registering With the vertical channel, an inner valve in said cylinder having a bore registering yWith the vertical channel, and means for rotating the inner valve and cylinder to control flow of fluid from the horizontal channel and from one end of the vertical channel to the lother end of said vertical channel.

In testimony whereof I afix my signature. 

